Smoke-consumer



(No Model.)

J. M. PITOHER.

SMOKE OONSUMEIL No. 350,556. Patented Oct. 12, 1886.

N, PETERS. Pheluiilhcgnphe Washington. n. c,

UNITED STATES:

PATENT Orricas JOHN M. PITCHER, OF SUGAR CREEK, HANCOCK COUNTY, INDIANA.

SMOKE-CONSUMER,

SPECIFICATION forming part of Letters Patent No. 350,556 dated October 12, 1886. Application filed December 16, 1885. Serial No. 185,804. (No model.)

To all whom) it may concern:

Be it known that I, J OHN M. PiToHER, of Sugar Creek township, county of Hancock, and State of Indiana,haveinvented certain new and useful Improvements in SmokeConsumers, of which the following is a specification.

The object of my invention is to provide an improvement on my sparlcarrester patented November 17, 1885, No. 330,420, whereby the ashes an d cinders are deposited in the ash-pan, and the smokemay be conducted through the grate-bars into the firebox, thus effecting perfeet combustion, thereby securing a great saving in fuel and time usually required in cleaning out the ashes and cinders which accumulate in drums when bituminous coal is burned in furnaces where my jacket is employed,whe'n not provided with my improvement. I accomplish these objects by means of the device described in this specification and illustrated in the drawings filed herewith and made a part hereof, and in which similar letters of reference relate to similar parts of my invention.

In Figure l, ipis an inclined plane, formed by removing a portion of the under side of the jacket or drum (Z, and riveting a section of sheet or boiler iron to the edges of the aperture thus made and to the plate p,which forms the back of the firebox and ash-pan perm'ittingthe lower edge of said section to extend far enough below the bottom of the grate-bars to admit a damper, do, of any desired size, to be inserted in the back plate, 1), between the gratebars 91) and inclined plane t'p thus formed. See Fig. 1, which is a longitudinal section of a boiler provided with my spark-arrester as originally patented, with my improvement applied. Fig. 2 is a cross-section of Fig. 1 on the line .90 00, looking to the right, and Fig. 8is a cross-section of Fig. 1 at the line yy, looking to the left. I

In Fig. 1, do is a damper loosely hinged to the back plate, 1), and is opened and closed at will by in cans of arod, 1*, provided with notches r near its upper end. This rod is hinged to the lower edge of the damper do. gl) is the grate-bars; fl), the fire-box, l) the boiler, and (l the drum or jacket; 0, the smokestack; 8 the spark-arrester for conducting the smoke and cinders from chamber bl) to chamber ch of my spark-arrester as originally patented, and to which this invention is to be applied.

The operation of my device is as follows: The'ashes and smoke ejected from the flues fl into the chamber or smoke-box l)b are thence driven by the exhaust-steam from the steampipe st through the spark-arrester 8p into the chamber oh, and thence down the inclined plane ip, from whence they can be discharged into the ash-pan through the door or damper do, and removed with ease at will. By opening the damper do any desired portion of the smoke contained in the chamber ch may be admitted into the ash-pan,and a sufficient amount of oxygen admitted through the door 2 to form the proper proportion. The mingled smoke and atmosphere ascend through the grate-bars gl) into the fire-box fl), where all the unconsumed carbon in the smoke is burned up, and perfect combustion thus produced. A little care on the part of the operator in admitting the smoke through damper do and theatm osphere through door 2 will be required to effect the desired result; but a few hours practice willenable any ordinaryfiremanto operate my device with ease.

To further control the volume of smoke, I can, Y

if desirable, apply a damper to the smokestack 0; but in practice I do not find this damper essential. I can also, by reason of my improvement, dispense with the spark-arrestor by permitting my jacket to communicate directly with the smoke-box b1), and placing the exhaust-pipe st where it will'discharge the exhaust-steam directly into the smoke-stack 0, when the same result will be attained in a more or less satisfactory manner.

The advantages Iderive from employing my device are, first, I can, if desired, dispense with the conductor sp by connecting my in'closing jacket directly with the smoke-box bl) and exhausting the steam into the stack a, as above de-' scribed; second, I can discharge the ashes and cinders into the ash-pan directly, where they can be removed at will with ease; third, I can by means of my device as new improved consume all the carbon usually carried away in smoke, thereby effecting great saving in the cost of constructing my'device, the time required to remove the ashes and cinders from jackets not provided with my improvement,

and a great saving in the cost of fuelall objects greatly to be desired.

Having thus described my invention, its objects and advantages, so that any one skilled in the art can construct and operate it, what I claim as new, and desire to secure by Letters Patent, is

l. A device for conducting smoke from the smoke-box of furnaces through the fire box, consisting of an inclosing-jaoket to envelop the boiler, having an outlet to the smoke-stack, a connnnnication with the smoke-box, and also with the ash-pan, in combination with door do and damper c, substantially as set forth.

2. In a smoke-consumer where an inelosingjacket for enveloping the boiler is employed, an inclosingjackct aport'ionol'thc under side of which is made to form an inclined plane, i9), for conductin g ashes and cinders from the chamber formed by the inclosingjackct and the outside of the boiler to the ash-pan, substantially as set forth.

3. In combination with a smokeeonsumer consisting of an inclosing-jacket, 11, forming with the outside of a boiler, b, the chamber ch, communicating with Smokestack 0, also with smoke-box I) through sparkarrester sp, and with fire-boxfb through door do and grate-bars gb, the damper c, co-opcrating with door do to regulate the amount of smoke passed through the fire-bo'x, substantially as set forth.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 8th day of December, A. D. 1885.

JOHN M. PITOHER. [L. s]

In presence of ALBERT \V. Wrsrmntn, \VM. H. WEBB. 

